Interaction of posture, forces and time

                  “The safety of the body is ensured by considering its weakest link.”                      It is important to remember that the interaction between posture, force and time may sometimes increase or decrease the total risk (increased probability and severity of injuries) considerably. It is for instance not necessarily true that lifting heavy weights is always a risk; this is acceptable as long as it is done infrequently (to ensure recovery) and with good posture.                   Read more

Measuring posture

                         How, then, can we determine if a posture in itself is harmful? A good rule of thumb is that if a posture is held near the outer range of motion, it is probably not a good position for taking on external forces. For many ergonomics evaluation methods, posture is defined in terms of joint angles between body segments. A “neutral” posture is considered the least amount of loading, and resembles a relaxed, standing, symmetrical body position with the arms hanging along the sides of the body .   Read more

Music

                 What is music its ? what comes out of the speakers when we play a cd on our stereo. Its what we hear on the radio. Music is singers singing and musicians playing. music is a sound that we enjoy hearing. iIs this a proper answer to the question what is music if i asked what is a car you could answer by pointing at a large object moving up the street and saying its one of those. But this may not be a satisfactory answer. A full explanation of what a car is would mention petrol internal combustion engines Read more

Dance

          What do we see when we see dance what do we feel when we dance who are we when we are part of an enactment of dance the phenomenon of dance brings to the fore key ideas about the nature of human meaning-making the role of our fundamentally corporeal actions in the world and the foundational aspects of our experiences. Dance i contend holds immense promise as an object for study as well as a subject of study that is a source of insight in itself shedding light on life movement and meaning. In investigating Read more

Benefit

          A number of factors have contributed to employer provision of non-mandatory benefits such as health insurance and pension plans. These include self interest of the decision makers union bargaining tax advantages provided to companies by the federalgovernment for offering certain bene ts the need to be competitive and retain employees and union avoidance. The logic underlying employer strategies to voluntarily provide benefits suggests that benefit to offering share associated with employee benefit satisfaction which in turn is associated with attitudes and behaviors that serve the employers interests harris fink 1994 the implied process based on social exchange Read more

Advance Skill

               Advances in technology and new levels of automation have had many effects in operational settings. There have been positive effects from both an economic and a safety point of view. Unfortunately, operational experience, field research, simulation studies, incidents, and occasionally accidents have shown that newand surprising problems have arisen as well. Breakdowns that involve the interaction of operators and computer-based automated systems are a notable and dreadful path to failure in these complex work environments. Over the years, Human Factors investigators have studied many of the “natural experiments” in human-automation cooperation – observing the consequences in cases where an organization Read more

Hard Skill

                       Based on this literature, the current paper examines the impacts of job skill types (cognitive or “hard” skills and non-cognitive or “soft” skills) on the black/white pay differentials and occupational choices. Our theoretical analysis derives two main hypotheses. First, the more intensively “soft” skills are used in an occupation, the greater the racial income gap is there in that occupation. In other words, the racial income gap of an occupation depends on its relative requirement of “soft” skills versus “hard” skills. Second, in response to differential discrimination across occupations Read more